CN110899898A - Ship building auxiliary hole opening method - Google Patents
Ship building auxiliary hole opening method Download PDFInfo
- Publication number
- CN110899898A CN110899898A CN201911123989.4A CN201911123989A CN110899898A CN 110899898 A CN110899898 A CN 110899898A CN 201911123989 A CN201911123989 A CN 201911123989A CN 110899898 A CN110899898 A CN 110899898A
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- connecting plate
- hole
- cutting knife
- bolt
- cutter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/10—Auxiliary devices, e.g. for guiding or supporting the torch
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a ship building auxiliary hole opening method, which adopts a specially-made ship building auxiliary hole opening tool, wherein the hole opening tool comprises a cutting knife fixing mechanism, an upper connecting plate, a lower connecting plate, a central rod, a connecting bolt and a connecting nut, one end of the upper connecting plate is connected with the cutting knife fixing mechanism, the other end of the upper connecting plate is connected with one end of the lower connecting plate through the connecting bolt shaft and is fixed through the connecting nut, the lower end face of the lower connecting plate is fixedly connected with the central rod, the central rod is vertical to the lower connecting plate, the lower end part of the central rod is conical, and the length of the upper connecting plate is greater than that of the lower connecting plate. The tool is simple to manufacture, low in cost, detachable, small in size, almost free of field limitation and capable of being repeatedly used in various occasions.
Description
Technical Field
The invention relates to the technical field of ship construction, in particular to a ship construction auxiliary hole opening method.
Background
In the process of building a ship, the opening of an outer plate of a sea valve, the opening of cathode protection, the opening of liquid level remote measurement, a pipe hole partially penetrating through a bulkhead, various pipe holes for later displacement modification, cable holes and the like are completed by site construction, and the site opening is generally cut by a flame gas cutter. The method comprises the steps of firstly finding out the center of a hole according to the three-dimensional coordinate of the hole to be punched, making a foreign punching mark, drawing a cutting diameter circle of the hole by using a marking circle gauge, holding a flame gas cutter by a hole drilling constructor, adjusting flame, and controlling the flame of a cutting nozzle of the gas cutter to cut a circle along the track of the drawn diameter circle to complete hole drilling operation. In the process of on-site drilling, because under the multiple factor of proficiency, trompil in-process hand shake or external influence, the hole that often appears cutting has the phenomenon that the circularity is not high, and the edge of a lot of trompils is the cockscomb structure, not only influences pleasing to the eye to increase work load for polishing in later stage, also influenced the quality of electric welding.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a ship building auxiliary hole opening method, which is used for solving the problems that holes cut are zigzag and have low cutting quality due to the influence of multiple factors when a ship is subjected to hole opening on a ship structure on site in a building stage, so that a site constructor can more easily perform hole opening operation on the ship structure, the hole opening quality is improved, and the building quality of the ship is further improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a ship building auxiliary hole opening method, which adopts a specially-made ship building auxiliary hole opening tool, wherein the hole opening tool comprises a cutting knife fixing mechanism, an upper connecting plate, a lower connecting plate, a central rod, a connecting bolt and a connecting nut, one end of the upper connecting plate is connected with the cutting knife fixing mechanism, the other end of the upper connecting plate is connected with one end of the lower connecting plate through the connecting bolt shaft and is fixed through the connecting nut, the lower end face of the lower connecting plate is fixedly connected with the central rod, the central rod is vertical to the lower connecting plate, the lower end part of the central rod is conical, the length of the upper connecting plate is greater than that of the lower connecting plate, and the auxiliary hole opening method comprises the following steps:
the method comprises the following steps that firstly, a cutting knife fixing mechanism, an upper connecting plate, a lower connecting plate, a center rod, a connecting bolt and a connecting nut are checked and prepared;
selecting a proper flame gas cutter according to the thickness of the steel plate to be cut, and connecting a corresponding gas source;
step three, a cutting nozzle of the flame gas cutter is arranged in a cutter fixing mechanism for fixing;
measuring by using a ruler according to the radius of the required hole, adjusting the distance between the center rod and the center of the cutting nozzle of the flame gas cutter to the radius of the required hole, and tightening a connecting nut to lock the upper connecting plate and the lower connecting plate;
fifthly, operating a flame gas cutter to adjust neutral cutting flame;
placing the rod tip of the central rod at a central ocean punching mark of a required hole, and slowly rotating a flame gas cutter around the central rod at a proper speed for one circle to complete the hole opening operation;
and step seven, after the hole opening operation is finished, closing the gas source to extinguish the flame of the gas cutting knife, taking out the flame gas cutting knife, and arranging the tool in place.
According to the preferable technical scheme, the cutting knife fixing mechanism comprises a cutting knife fixing sleeve, a locking bolt and a locking nut, the cutting knife fixing sleeve is provided with an inner hexagonal through hole in a penetrating mode along the axial direction, the side wall of the cutting knife fixing sleeve is provided with a bolt screwing hole in a penetrating mode, the locking nut is fixed on the outer side of the bolt screwing hole, and the locking bolt is matched with the locking nut.
As the preferred technical scheme, the cutting knife fixing sleeve, the locking bolt, the locking nut upper and lower connecting plates, the lower connecting plate, the central rod, the connecting bolt and the connecting nut are all made of Q235 steel materials.
Preferably, the length of the upper connecting plate is 130mm, and the length of the lower connecting plate is 120 mm.
Preferably, the central rod has a diameter of 8mm and a length of 70 mm.
Compared with the prior art, the invention has the beneficial effects that: the invention has the following advantages:
(1) the hole opening operation is carried out with the aid of the tool, so that the problem that the edge of the manually cut hole is jagged is solved, the cut hole is smoother, and the hole opening quality can be greatly improved;
(2) the cutting radius adjusting mechanism consists of the upper connecting plate, the lower connecting plate, the connecting bolt and the connecting nut, the distance between the central rod and the center of the cutting nozzle of the flame gas cutter can be adjusted to determine the cutting radius, holes of various specifications can be opened, and the application range is wide.
(3) The specification of the gas cutting knife fixing sleeve in the tool is suitable for the common G01-30, G01-100 and G01-300 straight-head gas cutting knives, the gas cutting knives can be replaced pertinently aiming at steel plates with different thicknesses, and the universality is high.
(4) The locking mechanism consists of the locking bolt and the locking nut, wherein the locking nut is welded on the gas cutting knife fixing sleeve, the cutting nozzle of the flame gas cutting knife is inserted into the gas cutting knife fixing sleeve, and then the locking bolt is screwed down to lock the cutting nozzle of the flame gas cutting knife, so that the cutting stability is ensured.
(5) The tool is simple to manufacture, low in cost, detachable, small in size, almost free of field limitation and capable of being repeatedly used in various occasions.
(6) The method of the invention can be operated without special training and without additional costs, the training and operating costs being almost zero.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a front view of the auxiliary hole opening tool for shipbuilding according to the invention.
Fig. 2 is a top view of the auxiliary hole opening tool for shipbuilding according to the invention.
Fig. 3 is a transverse sectional view of a cutting knife fixing sleeve in the shipbuilding auxiliary tapping tool.
Fig. 4 is a longitudinal sectional view of a cutting knife fixing sleeve in the shipbuilding auxiliary tapping tool.
Fig. 5 is a using state diagram of the shipbuilding auxiliary hole-opening tool.
Wherein the reference numerals are specified as follows: the cutting knife fixing sleeve comprises a cutting knife fixing sleeve 1, an upper connecting plate 2, a connecting bolt 3, a connecting nut 4, a lower connecting plate 5, a central rod 6, a locking bolt 7, a locking nut 8, an inner hexagonal through hole 9 and a bolt screwing hole 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1 and 2, the present embodiment provides a drilling tool for assisting in shipbuilding, the drilling tool includes a cutter fixing mechanism, an upper connecting plate 2, a lower connecting plate 5, a central rod 6, a connecting bolt 3 and a connecting nut 4, the cutter fixing mechanism is connected to one end of the upper connecting plate 2, the other end of the upper connecting plate 2 is connected to one end of the lower connecting plate 5 through the connecting bolt 3 shaft and fixed through the connecting nut 4, and a locking bolt 7 is spot-welded on the upper connecting plate 2 to be connected into a whole, so that tightness between the upper connecting plate 2 and the lower connecting plate 5 can be adjusted by only screwing the connecting nut 4. The lower end face of the lower connecting plate 5 is fixedly connected with a center rod 6, the center rod 6 is perpendicular to the lower connecting plate 5, the lower end part of the center rod 6 is conical, and the length of the upper connecting plate 2 is larger than that of the lower connecting plate 5.
As shown in fig. 3 and 4, the cutting knife fixing mechanism comprises a cutting knife fixing sleeve 1, a locking bolt 7 and a locking nut 8, the outer diameter of the cutting knife fixing sleeve 1 is 40mm and the height of the cutting knife fixing sleeve is 40mm, the cutting knife fixing sleeve 1 is provided with an inner hexagonal through hole 9 with the opposite side 27mm and the opposite angle 31.2mm in an axially penetrating mode, the inner hexagonal through hole 9 is used for placing a cutting nozzle of the flame gas cutting knife and is used for connecting the flame gas cutting knife with a tool. The side wall of cutting knife fixed sleeve 1 runs through and is provided with bolt screwing hole 10, and its diameter is 8mm, and the outside that the bolt screwed hole 10 is fixed with lock nut 8, and lock bolt 7 and lock nut 8 phase-match can be fixed with the cutting torch of flame gas cutting knife in screwing lock nut 8 with lock bolt 7.
It can be seen from the above that the working principle of the tool is that a proper flame gas cutting knife is selected according to the thickness of a steel plate to be cut, a cutting nozzle of the flame gas cutting knife is arranged in the cutting knife fixing sleeve 1, the locking bolt 7 is screwed down to lock the cutting nozzle of the flame gas cutting knife, the distance between the center rod 6 and the center of the cutting nozzle of the flame gas cutting knife is adjusted to the radius of the size of the required hole according to the size of the required hole, the connecting nut 4 is screwed down to lock the upper connecting plate 2 and the lower connecting plate 5, the flame gas cutting knife is operated to adjust neutral cutting flame, the rod tip of the center rod 6 is placed at the center foreign eye mark of the required hole, and the flame gas cutting knife rotates around the center rod 6 at a proper speed slowly for one circle to complete the hole opening operation.
In this example, the selection specifications for each part are shown in the following table:
as shown in fig. 5, the embodiment provides a drilling tool for assisting in building a ship, including the following steps:
the method comprises the following steps that firstly, a cutting knife fixing mechanism, an upper connecting plate 2, a lower connecting plate 5, a central rod 6, a connecting bolt 3 and a connecting nut 4 are checked and prepared;
selecting a proper flame gas cutter according to the thickness of the steel plate to be cut, and connecting a corresponding gas source;
step three, a cutting nozzle of the flame gas cutter is arranged in the cutter fixing sleeve 1 and is fixed through a locking bolt 7;
measuring by using a ruler according to the radius of the required hole, adjusting the distance between the central rod 6 and the center of the cutting nozzle of the flame gas cutter to the radius of the required hole, and tightening the connecting nut 4 to lock the upper connecting plate 2 and the lower connecting plate 5;
fifthly, operating a flame gas cutter to adjust neutral cutting flame;
placing the rod tip of the central rod 6 at a central ocean punching mark of a required hole, and enabling a flame gas cutter to slowly rotate around the central rod 6 at a proper speed for one circle to complete hole punching operation;
and step seven, after the hole opening operation is finished, closing the gas source to extinguish the flame of the gas cutting knife, taking out the flame gas cutting knife, and arranging the tool in place.
Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.
Claims (5)
1. The ship building auxiliary hole opening method is characterized in that a specially-made ship building auxiliary hole opening tool is adopted, the hole opening tool comprises a cutting knife fixing mechanism, an upper connecting plate, a lower connecting plate, a central rod, a connecting bolt and a connecting nut, one end of the upper connecting plate is connected with the cutting knife fixing mechanism, the other end of the upper connecting plate is connected with one end of the lower connecting plate through the connecting bolt shaft and is fixed through the connecting nut, the lower end face of the lower connecting plate is fixedly connected with the central rod, the central rod is perpendicular to the lower connecting plate, the lower end of the central rod is conical, the length of the upper connecting plate is larger than that of the lower connecting plate, and the auxiliary hole opening method comprises the following steps:
the method comprises the following steps that firstly, a cutting knife fixing mechanism, an upper connecting plate, a lower connecting plate, a center rod, a connecting bolt and a connecting nut are checked and prepared;
selecting a proper flame gas cutter according to the thickness of the steel plate to be cut, and connecting a corresponding gas source;
step three, a cutting nozzle of the flame gas cutter is arranged in a cutter fixing mechanism for fixing;
measuring by using a ruler according to the radius of the required hole, adjusting the distance between the center rod and the center of the cutting nozzle of the flame gas cutter to the radius of the required hole, and tightening a connecting nut to lock the upper connecting plate and the lower connecting plate;
fifthly, operating a flame gas cutter to adjust neutral cutting flame;
placing the rod tip of the central rod at the central ocean punching mark of the required hole, and enabling the flame gas cutter to rotate around the central rod for one circle to complete the hole opening operation;
and step seven, after the hole opening operation is finished, closing the gas source to extinguish the flame of the gas cutting knife, taking out the flame gas cutting knife, and arranging the tool in place.
2. The shipbuilding auxiliary tapping method according to claim 1, wherein the cutter fixing mechanism includes a cutter fixing sleeve, a locking bolt and a locking nut, the cutter fixing sleeve is axially provided with a hexagonal through hole, a bolt screwing hole is formed in a side wall of the cutter fixing sleeve, the locking nut is fixed to an outer side of the bolt screwing hole, and the locking bolt is matched with the locking nut.
3. The shipbuilding auxiliary tapping method according to claim 2, characterized in that the cutter fixing sleeve, the locking bolt, the locking nut upper and lower connecting plates, the lower connecting plate, the center rod, the connecting bolt and the connecting nut are all made of Q235 steel.
4. The shipbuilding auxiliary tapping method as claimed in claim 1, wherein the length of the upper connection plate is 130mm, and the length of the lower connection plate is 120 mm.
5. A shipbuilding auxiliary tapping method according to claim 1, wherein the central rod has a diameter of 8mm and a length of 70 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911123989.4A CN110899898A (en) | 2019-11-15 | 2019-11-15 | Ship building auxiliary hole opening method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911123989.4A CN110899898A (en) | 2019-11-15 | 2019-11-15 | Ship building auxiliary hole opening method |
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| Publication Number | Publication Date |
|---|---|
| CN110899898A true CN110899898A (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911123989.4A Pending CN110899898A (en) | 2019-11-15 | 2019-11-15 | Ship building auxiliary hole opening method |
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| Country | Link |
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| CN (1) | CN110899898A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633068A (en) * | 2009-06-05 | 2010-01-27 | 泰州口岸船舶有限公司 | Perforating device for sloping plate |
| CN202006332U (en) * | 2011-03-23 | 2011-10-12 | 焦作演马电力有限责任公司 | Folding type cutting gauge |
| CN103056569A (en) * | 2012-12-27 | 2013-04-24 | 渤海造船厂集团有限公司 | Hole-opening cutting method for ship broadside pipes |
| CN203426571U (en) * | 2013-08-19 | 2014-02-12 | 郭吉刚 | Foldable cutting compass |
| CN203566047U (en) * | 2013-09-27 | 2014-04-30 | 浙江吉利控股集团有限公司 | Auxiliary device for manual oxyacetylene cutting machining |
| CN105071014A (en) * | 2015-07-23 | 2015-11-18 | 江苏中伟业通讯设备有限公司 | Antenna support |
| CN105252104A (en) * | 2015-11-18 | 2016-01-20 | 辽宁石油化工大学 | Flame cutting method of steel plate |
| CN106801515A (en) * | 2017-02-22 | 2017-06-06 | 中建八局第四建设有限公司 | A kind of positioner for being preset to comb |
| CN106825851A (en) * | 2017-03-27 | 2017-06-13 | 中国海洋石油总公司 | The cutting technique of doughnut-shaped steel plate |
| CN109411865A (en) * | 2018-10-19 | 2019-03-01 | 江苏中伟业通讯设备有限公司 | A kind of Two bors d's oeuveres antenna mounting assembly |
-
2019
- 2019-11-15 CN CN201911123989.4A patent/CN110899898A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101633068A (en) * | 2009-06-05 | 2010-01-27 | 泰州口岸船舶有限公司 | Perforating device for sloping plate |
| CN202006332U (en) * | 2011-03-23 | 2011-10-12 | 焦作演马电力有限责任公司 | Folding type cutting gauge |
| CN103056569A (en) * | 2012-12-27 | 2013-04-24 | 渤海造船厂集团有限公司 | Hole-opening cutting method for ship broadside pipes |
| CN203426571U (en) * | 2013-08-19 | 2014-02-12 | 郭吉刚 | Foldable cutting compass |
| CN203566047U (en) * | 2013-09-27 | 2014-04-30 | 浙江吉利控股集团有限公司 | Auxiliary device for manual oxyacetylene cutting machining |
| CN105071014A (en) * | 2015-07-23 | 2015-11-18 | 江苏中伟业通讯设备有限公司 | Antenna support |
| CN105252104A (en) * | 2015-11-18 | 2016-01-20 | 辽宁石油化工大学 | Flame cutting method of steel plate |
| CN106801515A (en) * | 2017-02-22 | 2017-06-06 | 中建八局第四建设有限公司 | A kind of positioner for being preset to comb |
| CN106825851A (en) * | 2017-03-27 | 2017-06-13 | 中国海洋石油总公司 | The cutting technique of doughnut-shaped steel plate |
| CN109411865A (en) * | 2018-10-19 | 2019-03-01 | 江苏中伟业通讯设备有限公司 | A kind of Two bors d's oeuveres antenna mounting assembly |
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Application publication date: 20200324 |
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